Derale 20" Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM

Part Number: D17320

34 Reviews | 9 Questions

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$76.43

Retail:$80.28

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derale radiator fans 20 inch diameter standard rotation rigid steel-blade race fan - belt driven 8 000 rpm

derale radiator fans belt-driven 20 inch diameter d17320

derale radiator fans belt-driven 20 inch diameter rigid steel-blade race fan - belt driven 8 000 rpm

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19-3/4" Diameter x 2" deep, replacement, belt-driven fan provides more airflow than factory models, no matter the RPM, and meets most racing regulations. Features durable steel blades and all-metal construction. Great Prices for the best radiator fans from Derale. Derale 20" Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM part number D17320 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

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Reviews (34)
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Derale Radiator Fans - D17320

Features:

Offers maximum full-time airflow
Meets most racing requirements for belt-driven fan applications
Serves as replacement for factory fan and fan clutch
Constructed of rigid, durable steel
Made in USA

Specs:

Dimensions: 19-7/8" diameter x 2" deep
Flange adjustability: 1-3/4" - 2-1/4"
- Pilot hole: 5/8" diameter
Rotation: standard
RPM rating: 8,000
1-Year warranty

17320 Derale Belt-Driven, Rigid Race Steel Blade Fan

4.7

34 reviews

5 Stars		(29)
4 Stars		(3)
3 Stars		(1)
2 Stars		(0)
1 Star		(1)

by: Mark 04/16/2025

Reasonable prices, fast shipping,

by: Oakhurst Auto 07/16/2021

AS ADVERTISED HARD TO BELIVE BUYING RACE CAR PARTS FROM A TRAILER DEALER

by: Rian Berry 04/09/2017 One Year Later

Works better than expected. Put this on a Cat 3054T for my Morbark model 13 chipper. Stock fan was about $300.00 No complaints after one year of use.

by: Kevin Fischer 01/08/2015

Just installed this fan on a cj5, and wow this thing moves some air, at idle and all through the rpm range. I would definitely buy this again for other projects.

by: Vince 10/04/2022

Good product, fast service

by: Sean 11/02/2018

Kick Ass Blade!

by: Jorge 05/10/2023

by: Jon 02/11/2021

by: Joel 07/24/2025

this fan is heavy duty and pulls good amount of air. I am not sure why they advertise it as a racing fan. It is more for overheating on heavy loads. I believe it when they say it can go 8000 rpms though.

by: Cherokee Jeeper 07/17/2015

Very fast shipping! And a very fast install. Running it a Jeep Cherokee with the 4.0 L only had to modify the fan shroud a little bit. Using a 2" spacer. I drive with the AC on in hot weather in traffic!

Dallas

9/21/2015

No over heating when idlin? Do you have a shrou?

Cherokee J.

9/25/2015

I ended up going with a bigger fan to handle rock-crawling.

by: Darrell 06/18/2020

Fan looks great. I just put it on,haven't tried it yet.
The only problem I have is I paid extra freight charge to get it quicker. Didn't realize it would take 10 days from the day I placed the order to get it shipped.
I rebuilt custom cars,order a lot of parts with out this time delay.

by: Joel 12/22/2023

fast shipping and as described, good price

by: Jaydirt27 09/12/2013

Amazing product. It works three times better than stock and half the cost.

Jaydirt27 One Year Later

9/12/2014

Works great. No problems. One of the best I have bought.

by: Dennis P 04/25/2017 One Year Later

Fit great and works perfectly I have recemend to a few people

Dennis P. One Year Later

4/25/2018

Great no issues very happy

by: tom mc 02/01/2015

needed a larger fan blade for the motor on my airboat... works great

by: Ron K. 03/04/2016 One Year Later

The fan does not produce enough air flow at low rpm. I sent a request to your engineers to look into finding a flex fan or alike to resolve this issue - no response after several attempts. I need a good replacement for this Toyota part #16361-23060-71.

Thank you - Ron Karsting (909)234-9419

by: Ross Rector 08/16/2016

The product seems alright for now, but I am sad to say it's took almost a month to receive. I wished I would have known the wait prior to buying. A little more upfront information would've been appreciated.
Thanks.

by: John 04/20/2021 One Year Later

Very well built fan that has worked well in this older vehicle.

by: Chad 10/01/2022

Exactly as advertised. Installed on an ‘84 CJ7. 258.

by: Michel 08/02/2022 One Year Later

This one is way better than the plastic fan

by: Nick B. 12/01/2014

Excellent product and price...just what I needed. Thank you.

by: H 09/20/2022 One Year Later

Works great and easy to install

by: Harry 07/23/2012

full 4" wide with 5 rivits per blade. Works great.

by: Tommy 11/09/2018

exactly the size I was looking for

by: Randy 09/12/2022

I like it

true

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See what our Experts say about this Derale Radiator Fans

Do you have a question about this Radiator Fan?

Does Derale Race Fan # D17320 Move More Air Than Derale Flex Fan # D17019
The two Derale fans referenced, their 20-inch Race Fan # D17320 and their 19-inch Flex Fan # D17019, will offer similar performance at lower RPMs, but at higher RPMs the Race Fan will deliver more air volume. As a result it will also put somewhat more drag on the motor. This is because the race fan is rigid and its blades maintain their profile at all speeds, while the flex fan blades are designed to flatten out at high RPMs to allow the air flow from the vehicles speed to provide much...
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Availability of Radiator Fan for 2001 Dodge 2500 Cummins 5.9L Engine
Sounds like you are looking for a direct-fit, bolt-on Flex-a-lite dual electric-fan system for your 2001 Dodge 2500 Cummins. The # FLX262 fits 1994-2002 Dodge Ram trucks with the 5.9L Cummins diesel. This dual 15 inch electric fans with shroud measures 37-1/4 inches wide x 20-1/4 inches tall x 4-1/4 inches deep. The replacement 15 inch S-blade fan blade for the Flex-a-lite Fan is # FLX31016K. I have linked both of these products to this page for your convenience.
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Determining Fit of Replacement Radiator Fan for 2002 Dodge Ram 3500
Derale's radiator fans are designed as a universal-type fit item so that the fans can fit a wide variety of vehicles. To be sure that either of the fans you are looking at, the Derale 20 Inch Rigid, Steel-Blade Race Fan, Belt Driven # D17320 and the Derale 20 Inch Fan Clutch Fan # D17120, will fit well on your 2002 Dodge 3500 the best solution is to measure the space available for the radiator fan. I spoke with my contact at Derale and he confirmed that measuring is the best way to determine...
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Does Derale 20 inch Rigid, Steel-Blade Race Fan, # D17320 Spin Clockwise or Counter Clockwise
If you are in front of the vehicle, facing the engine, the standard rotation of the Derale 20 inch Rigid, Steel-Blade Race Fan - Belt Driven, # D17320, would be a clockwise rotation.
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Could Derale 20" Rigid, Steel-Blade Race Fan Push and Pull Air
In theory yes, the Derale 20" Rigid, Steel-Blade Race Fan # D17320 could spin either direction and push or pull air. But since this is designed to mount to a pulley on an engine you wouldn't be able to get it to push air through a radiator.
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Replacement Race Fan For A 1985 Chevrolet C/K Series Pickup
When it comes to installing The Derale 20 inch Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM # D17320 on your 1985 Chevrolet C/K Series Pickup will work if the mounting hole space on your original fan is between 1-3/4 inches to 2-1/4 inches, and has a pilot hole of 5/8 inches. If yours measures out to be different please reach back out and I can try and find something that will work.
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Replacement Radiator Fan Blade for 1997 Dodge Ram 3500 with 5.9L Cummins Engine
You can select a new radiator fan blade like the Derale # D17320 for your 1997 Dodge Ram 3500 5.9 Pickup by matching up the dimensions and mounting hole pattern of your OEM fan blade since these items are not vehicle-specific. The Derale # D17320 measures 19-7/8-inches diameter x 2-inches deep and has a 5/8-inch pilot hole. The slotted mounting holes provide an adjustment range from 1-3/4- to 2-1/4-inches. The linked page will let you review and sort all of our replacement fans.
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Recommendation for a 1997 Dodge Ram 3500 Diesel and Mounting a Derale 20 Rigid Belt Driven Fan
According to my contacts at Derale the 20 inch Rigid Steel Blade Race Fan # D17320 can not be mounted to a fan clutch, it is considered a rigid mounting system. This fan is considered a standard rotation, has a maximum rpm rating for up to 8,000 rpm. However, if you would like to consider a fan that will mount to your fan clutch, then you would need the # D17120. This style of fan would mount to your existing fan clutch, and would not need a spacer for mounting. It is also a standard rotation...
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Will the Derale Radiator Race Fan # D17420 Replace the Factory Fan in a 1988 Ford F-250
The Derale 20 Inch Race Fan, # D17420, has a 19-7/8 inch diameter so it will fit within your 22 inch shroud. One thing to keep in mind with this fan is that it is a race fan which means it will require you to remove your fan clutch as well. It is designed to pull more air as your engines RPMs increase and not to be regulated by a clutch. Removing the factory clutch will effect the length of the spacer that you need. Once you have the clutch removed, you will want to measure from the water...
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